HEAT TRANSFER PROMOTION STRUCTURE FOR INTERNALLY CONVECTIVELY COOLED AIRFOILS

摘要

A cooled airfoil has an internal cooling pas-sage in which a plurality of trip strips are arranged to effect variable coolant flow and heat transfer coefficient distribu-tion so as to advantageously minimize the amount of coolant flow required to adequately cool the airfoil structure. In one embodiment, this is accomplished by varying the dimensions of the trip strips along a transversal axis relative to the cool-ing passage.